Catalyst ink
US7855160B2 · kind B2 · utility
1Cited by
15References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2010 |
| Grant date | Dec 21, 2010 |
| Priority date | — |
| Expiry date | Jul 21, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A catalyst ink is provided, comprising: 25-95% by weight water; 1-50% by weight of at least one solid catalyst, typically a highly dispersed platinum catalyst; 1-50% by weight of at least one polymer electrolyte in acid (H+) form; and 1-50% by weight of at least one polar aprotic organic solvent. The catalyst ink typically has a viscosity at 1 sec−1 of 10 Pa·sec or less. The catalyst ink typically does not ignite spontaneously when dried to completion in air at a temperature of 80° C. or greater. The catalyst ink may be used in the fabrication of membrane electrode assemblies for use in fuel cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.